Oxygen is an essential element for survival. Ocean warming, circadian rhythm, eutrophication, high-density aquaculture, power failures and long-distance live animal transportation can all lead to low oxygen levels in water. ...
Plants & Animals
Jan 29, 2024
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7
Hundreds of tons of dead fish flowed down the Oder River at the turn of July and August 2022. The scale of the event was devastating. Despite prompt efforts, Polish and German authorities struggled to identify the cause of ...
Earth Sciences
Jan 25, 2024
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1
The oldest evidence of photosynthetic structures reported to date has been identified inside a collection of 1.75-billion-year-old microfossils, a Nature paper reveals. The discovery helps to shed light on the evolution of ...
Evolution
Jan 4, 2024
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261
In the quest to understand the potential for life beyond Earth, researchers are widening their search to encompass not only biological markers, but also technological ones. While astrobiologists have long recognized the importance ...
Astrobiology
Jan 2, 2024
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119
A team of biologists and natural resource specialists from Cornell University and Rensselaer Polytechnic Institute, both in New York, has found evidence suggesting that lake fish in some of New York's lakes are losing habitat ...
When water vapor meets metal, the resulting corrosion can lead to mechanical problems that harm a machine's performance. Through a process called passivation, it also can form a thin inert layer that acts as a barrier against ...
Nanomaterials
Dec 11, 2023
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259
Decade-long ocean warming that impacts ocean circulation, a decrease in oxygen levels that contributes to changes in salinification and nutrient supply, and ocean acidification are just some of the challenges the world's ...
Earth Sciences
Dec 8, 2023
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73
This summer's oxygen-poor "dead zone" in the Chesapeake Bay was the smallest since scientists started monitoring it in 1985, according to estimates by researchers in Maryland and Virginia.
Environment
Nov 29, 2023
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13
The core–mantle boundary (CMB) is the interface between the Earth's iron metal core and the thick rocky layer of mantle just above the core. It is a world of extremes—temperatures thousands of degrees Fahrenheit and pressures ...
Earth Sciences
Nov 17, 2023
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300
Along the picturesque shores of Lake Ohrid, things have taken on a frantic pace at the Lin Hatchery in Albania's Pogradec, as a team of specialists races to release the final batch of newly spawned trout this season.
Ecology
Nov 16, 2023
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1
